Striking force testing method, device, terminal equipment and medium
By conducting standardized measurement of the disc spring and high-strain impact test, the target relationship curve is determined, and the problem of inaccurate impact detection caused by concrete cracking or plastic deformation in the existing technology is solved, real and accurate measurement of the impact force of the foundation pile is achieved, and the quality and safety of the pile foundation project is ensured.
Patent Information
- Application Number
- CN202210037109.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-01-13
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2042-01-13
AI Technical Summary
The existing high-strain dynamic pile testing method is prone to distortion of the force curve due to concrete cracking or severe plastic deformation when detecting impact forces, which affects the accuracy of the detection results, and thus cannot effectively ensure the quality and safety of pile foundation projects.
The first relation curve is obtained by standardizing the disc spring by press, strain flower and steel gasket; then the high-strain impact test is performed on the foundation pile based on the strain flower, steel gasket and the standardized disc spring to obtain the second relation curve; finally, the target relation curve is determined based on the two, and the impact force of the foundation pile in the high-strain impact test is accurately determined.
It effectively avoids the force curve distortion caused by concrete cracking or severe plastic deformation, ensures the accuracy of impact force detection, and ensures the quality and safety of pile foundation projects.
Smart Images

Figure CN114354344B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of impact force testing, and in particular to a method, device, terminal equipment and computer-readable storage medium for testing impact force. Background Art
[0002] High-strain dynamic pile test method refers to all methods that can cause permanent deformation (or large dynamic displacement) between the pile and the soil to dynamically test the bearing capacity of the pile. This method is suitable for testing the vertical compressive bearing capacity and pile integrity of the pile. Compared with the single pile vertical compressive static load test, this method is less expensive, less time-consuming and has lower site requirements.
[0003] High strain tests usually use annular strain force sensors to detect the cross-sectional stress of the pile in high strain dynamic test piles. The sensor is installed close to the pile body through expansion bolts driven into the concrete. It measures the strain value of the 77mm (sensor gauge length) section of the pile body. To convert it into force, it must be multiplied by the elastic modulus E of the pile body material. Therefore, force is not its direct test quantity, but is converted by the following formula:
[0004] F=EAε=C 2 ρAε
[0005] From the above formula, it can be seen that the force value is linearly related to the strain measurement result. Therefore, the accuracy of the force test depends largely on the strain test result of the concrete where the sensor is installed. The results of the high-strain method are highly dependent on the force curve collected by the sensor during the test. The specification stipulates that the bearing capacity test results shall not be provided when the concrete at the sensor installation location is cracked or has severe plastic deformation, resulting in the force curve not obviously returning to zero. This avoids the distortion of the force signal caused by the nonlinearity of the concrete. When the concrete is compressed, it is theoretically an amplification of the measured force value, which is unsafe and will cause a major hidden danger to the quality and safety of the pile foundation project. In the existing high-strain test process, slight vertical cracks were found by observing the exposed surface of the concrete at the sensor installation location. It can be found that the severe plastic deformation of the concrete at the sensor installation location caused the distortion of the force signal.
[0006] In summary, the impact force value measured by the existing high-strain dynamic pile test method is related to the concrete at the sensor installation location, which can easily lead to inaccurate test results and make it impossible to accurately control the quality and safety of the pile foundation project. Summary of the invention
[0007] The main purpose of the present invention is to provide a method, an apparatus, a terminal device and a computer-readable storage medium for testing striking force, so as to improve the accuracy of testing striking force.
[0008] To achieve the above object, the present invention provides a method for testing striking force, wherein the striking force testing comprises:
[0009] Performing standardized measurement on the disc spring by using the press, the strain gauge flower and the steel gasket to obtain a first relationship curve;
[0010] A high strain impact test is performed on the pile to be tested based on the strain rosette, the steel gasket and the disc spring after standardized measurement to obtain a second relationship curve; a target relationship curve is determined based on the first relationship curve and the second relationship curve, and the impact force on the pile in the high strain impact test is determined based on the target relationship curve.
[0011] Optionally, the first relationship curve comprises: a vertical load-strain relationship curve, and the step of obtaining the first relationship curve by performing standardized measurement on the disc spring using the press, the strain rosette and the steel gasket comprises:
[0012] The disc spring is subjected to standardized measurement by the press, the strain rosette and the steel gasket to obtain a static pressure change value of the press and a strain change value of the strain rosette;
[0013] The vertical load-strain relationship curve is obtained based on the static pressure change value and the strain change value.
[0014] Optionally, the second relationship curve comprises: a strain-time relationship curve, and the step of performing a high strain impact test on the pile to be tested based on the strain rosette, the steel gasket and the disc spring after the standardized measurement to obtain the second relationship curve comprises:
[0015] Based on the plurality of strain rosettes, the steel washers and the disc springs after standardized measurement, a high strain impact test is performed on the foundation pile to obtain a strain-time relationship curve of the disc spring.
[0016] Optionally, the target relationship curve includes a stress-time relationship curve, and the step of determining the target relationship curve according to the first relationship curve and the second relationship curve includes:
[0017] The stress-time history relationship curve is obtained by performing reverse normalization on the second relationship curve according to the first relationship curve.
[0018] Optionally, an impact force on the disc spring is obtained according to the stress-time relationship curve, and an impact force on the foundation pile in the high strain impact test is determined based on the impact force.
[0019] Optionally, the disc spring is located between an upper top plate of the press and a lower bottom plate of the press.
[0020] Optionally, the disc spring is located on top of the foundation pile.
[0021] To achieve the above object, the present invention further provides a device for testing striking force, the device comprising:
[0022] A disc spring, wherein the disc spring is used to test the impact force of a foundation pile to be tested, wherein the foundation pile is located below the disc spring;
[0023] A strain rosette, the strain rosette is located on both sides of the disc spring, and the strain rosette is used to measure the strain of the disc spring;
[0024] A steel gasket is located above the disc spring and is used for bearing the impact load in the impact force test.
[0025] A press, wherein an upper plate of the press is located above the steel gasket and a lower base plate of the press is located below the disc spring, and the press is used to perform standardized measurements on the disc spring.
[0026] Among them, each functional module of the striking force testing device of the present invention implements the steps of the striking force testing method as described above during operation.
[0027] To achieve the above-mentioned purpose, the present invention also provides a terminal device, which includes: a memory, a processor, and a striking force testing program stored in the memory and executable on the processor, wherein the striking force testing program implements the steps of the striking force testing method as described above when executed by the processor.
[0028] In addition, to achieve the above objectives, the present invention also proposes a computer-readable storage medium, on which a testing program for striking force is stored, and when the testing program for striking force is executed by a processor, the steps of the striking force testing method as described above are implemented.
[0029] In addition, to achieve the above-mentioned purpose, the present invention also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned method for testing the striking force are implemented.
[0030] The present invention provides a test, device, terminal equipment, computer-readable storage medium and computer program product of impact force, wherein a first relationship curve is obtained by performing standardized measurement on the disc spring through the press, the strain rosette and the steel washer; a high strain impact test is performed on a pile to be tested based on the strain rosette, the steel washer and the disc spring after the standardized measurement to obtain a second relationship curve; a target relationship curve is determined according to the first relationship curve and the second relationship curve, and the impact force on the pile in the high strain impact test is determined based on the target relationship curve.
[0031] Compared with the prior art that uses annular strain force sensors to detect the cross-sectional stress on the pile body in high-strain dynamic test piles, the present invention can avoid the influence of concrete cracking or severe plastic deformation that causes the force curve to obviously not return to zero and inaccurate numerical amplification, and can measure the real and accurate impact force borne by the foundation pile in high-strain detection, thereby ensuring the quality and safety of the pile foundation project. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 A schematic diagram of the structure of the hardware operating environment involved in the embodiment of the present invention;
[0033] Figure 2 A schematic diagram of a flow chart of an embodiment of a method for testing striking force of the present invention;
[0034] Figure 3 A schematic diagram of loading for a disc spring calibration test involved in an embodiment of a method for testing striking force of the present invention;
[0035] Figure 4 This is a schematic diagram of the disc spring impact pre-test loading involved in an embodiment of the striking force testing method of the present invention.
[0036] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0037] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.
[0038] like Figure 1 As shown, Figure 1 It is a schematic diagram of the device structure of the hardware operating environment involved in the embodiment of the present invention.
[0039] It should be noted that the terminal device in the embodiment of the present invention may be a terminal device for implementing data extraction from multiple types of data sources, and the terminal device may specifically be a smart phone, a personal computer, a server, and the like.
[0040] like Figure 1As shown, the device may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory, or it may be a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.
[0041] Those skilled in the art will understand that Figure 1 The device structure shown in the figure does not constitute a limitation of the device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.
[0042] like Figure 1 As shown, the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a striking force test program. The operating system is a program that manages and controls the hardware and software resources of the device, and supports the operation of the striking force test program and other software or programs. Figure 1 In the device shown, the user interface 1003 is mainly used for data communication with the client; the network interface 1004 is mainly used for establishing a communication connection with the server; and the processor 1001 can be used to call the striking force test program stored in the memory 1005 and perform the following operations:
[0043] Performing standardized measurement on the disc spring by using the press, the strain gauge flower and the steel gasket to obtain a first relationship curve;
[0044] A second relationship curve is obtained by performing a high strain impact test on the pile to be tested based on the strain rosette, the steel gasket and the disc spring after the standardized measurement;
[0045] A target relationship curve is determined according to the first relationship curve and the second relationship curve, and an impact force on the foundation pile in the high strain impact test is determined based on the target relationship curve.
[0046] Furthermore, the first relationship curve includes: a vertical load-strain relationship curve, and the processor 1001 can also be used to call the impact force test program stored in the memory 1005, and perform the following operations:
[0047] The disc spring is subjected to standardized measurement by the press, the strain rosette and the steel gasket to obtain a static pressure change value of the press and a strain change value of the strain rosette;
[0048] The vertical load-strain relationship curve is obtained based on the static pressure change value and the strain change value.
[0049] Furthermore, the second relationship curve includes a strain-time relationship curve. The processor 1001 can also be used to call the impact force test program stored in the memory 1005, and perform the following operations:
[0050] Based on the plurality of strain rosettes, the steel washers and the disc springs after standardized measurement, a high strain impact test is performed on the foundation pile to obtain a strain-time relationship curve of the disc spring.
[0051] Furthermore, the target relationship curve includes a stress-time relationship curve. The processor 1001 can also be used to call the impact force test program stored in the memory 1005, and perform the following operations:
[0052] The stress-time history relationship curve is obtained by performing reverse normalization on the second relationship curve according to the first relationship curve.
[0053] Furthermore, the processor 1001 may also be used to call a striking force test program stored in the memory 1005, and further perform the following operations:
[0054] The impact force on the disc spring is obtained according to the stress-time relationship curve, and the impact force on the foundation pile in the high strain impact test is determined based on the impact force.
[0055] Reference Figure 2 , Figure 2 FIG. 4 is a flow chart of a first embodiment of a method for testing striking force of the present invention.
[0056] In this embodiment, an embodiment of a method for testing striking force is provided. It should be noted that, although a logical sequence is shown in the flow chart, in some cases, the steps shown or described may be performed in a different order than that shown here.
[0057] Step S10, performing standardized measurement on the disc spring using the press, the strain gauge flowerpot and the steel gasket to obtain a first relationship curve;
[0058] It should be noted that, in the present embodiment, the disc spring has the advantages of high bearing capacity, suitable stiffness, stable performance, etc., can provide good vertical seismic isolation effect, and there is conical friction and edge friction between the discs, which can provide a certain damping dissipation energy under the action of reciprocating loads. Therefore, it is widely used in the fields of automobiles and machinery, and is also commonly used in vertical seismic isolation devices of building structures. Before using disc springs to test the impact force of pile foundations in high strain detection, it is necessary to pre-standardize the disc springs using a press. Standardized measurement mainly refers to the use of standard measuring instruments to detect the accuracy (precision) of the instruments used.
[0059] Specifically, for example, Figure 3 The loading diagram of the disc spring calibration test shown in the figure, when the disc spring 4 is preliminarily subjected to standardized measurement by the press 30, in addition to the disc spring 4, it also includes: the press 30, the steel gasket 1, the disc spring 4, the first strain gauge 2, the first strain gauge 3 and the first displacement meter 6 and the second displacement meter 7, wherein the press 30 includes the press upper top plate 301 and the press lower bottom plate 302, the strain gauge is a cross-shaped strain gauge, and multiple groups of strain gauges are arranged on both sides of the disc spring 4, and the first displacement meter 6 is respectively connected to the press upper top plate 301 and the press lower bottom plate 302, and the second displacement meter 7 is also respectively connected to the press upper top plate 301 and the press lower bottom plate 302. In this embodiment, the static pressure change value of the press 30 can be read, and the strain change value of the disc spring 4 measured by the first strain gauge 2 and the second strain gauge 3 can be read, and then the first variable curve is obtained according to the static pressure change value and the strain change value, that is, the standardized measurement of the disc spring 4 based on the press 30 is realized.
[0060] Step S20, performing a high strain impact test on the pile to be tested based on the strain rosette, the steel gasket and the disc spring after the standardized measurement to obtain a second relationship curve;
[0061] After the disc spring 4 is standardized by the first strain rosette 2, the first strain rosette 3, the steel gasket 1, the first displacement meter 6, the second displacement meter 7 and the press 30, a high strain impact test can be further performed on the first strain rosette 2, the first strain rosette 3 and the disc spring 4 after the standardized measurement to obtain a second relationship curve.
[0062] It should be noted that, in this embodiment, the device for high strain impact test includes a steel gasket 1, a disc spring 4, a first strain rosette 2 and a first strain rosette 3, wherein the steel gasket 1 is located at the top of the disc spring 4, and the first strain rosette 2 and the first strain rosette 3 are arranged on both sides of the disc spring 4. In the high strain impact test, an impact load perpendicular to the direction of the steel gasket 1 is applied, and the disc spring 4 will be deformed under the impact load, thereby generating a force on the foundation pile.
[0063] Step S30, determining a target relationship curve according to the first relationship curve and the second relationship curve, and determining the impact force on the pile in the high strain impact test based on the target relationship curve.
[0064] When the disc spring 4 is subjected to standardized measurement by the press 30, the steel gasket 1, the first strain rosette 2, the first strain rosette 3, the first displacement meter 6 and the second displacement meter 7 to obtain a first relationship curve, and a high strain impact test is performed by the press 30, the steel gasket 1, the first strain rosette 2, the first strain rosette 3 and the pile 5 to obtain a second relationship curve, the impact force exerted on the disc spring 4 under the impact load is further obtained based on the first relationship curve and the second relationship curve, and finally the impact force borne by the pile during the high strain detection process is measured. In this embodiment, the real and accurate impact force on the pile can be measured in the high strain detection.
[0065] In this embodiment, the static pressure change value of the press 30 is measured by a displacement meter, and the strain change value of the disc spring 4 is measured by a strain rosette, and then a first variable curve is obtained according to the static pressure change value and the strain change value, that is, a standardized measurement of the disc spring 4 based on the press 30 is realized, and a high strain impact test is further performed on the disc spring 4 after multiple strain rosettes and standardized measurement to obtain a second relationship curve, and the impact force of the disc spring 4 under the impact load is obtained according to the first relationship curve and the second relationship curve, and finally the magnitude of the impact force borne by the pile during the high strain detection process is measured.
[0066] Compared with the prior art that uses annular strain force sensors to detect the cross-sectional stress on the pile body in high-strain dynamic test piles, the present invention can avoid the influence of concrete cracking or severe plastic deformation that causes the force curve to obviously not return to zero and inaccurate numerical amplification, and can measure the real and accurate impact force borne by the foundation pile in high-strain detection, thereby ensuring the quality and safety of the pile foundation project.
[0067] Furthermore, based on the first embodiment of the method for testing the striking force of the present invention, a second embodiment of the method for displaying products in a shopping mall of the present invention is proposed.
[0068] In this embodiment, the method for testing striking force of the present invention further includes:
[0069] The disc spring is located between an upper top plate of the press and a lower bottom plate of the press.
[0070] The disc spring is located on top of the foundation pile.
[0071] It should be noted that, in this embodiment, when the disc spring 4 is subjected to standardized measurement by the press 30, the disc spring 4 is located between the upper top plate 301 of the press and the lower bottom plate 302 of the press, and the steel gasket 1 is located between the disc spring 4 and the upper top plate 301 of the press. When the disc spring 4 is subjected to a high strain impact test on the pile 5, the disc spring 4 is located at the top of the pile 5, and the steel gasket 1 is located at the top of the disc spring 4, that is, an impact load perpendicular to the direction of the steel gasket 1 is applied.
[0072] Furthermore, in the above step S10, “performing a standardized measurement on the disc spring by using the press, the strain gauge flower and the steel gasket to obtain a first relationship curve” may include:
[0073] Step S101, performing standardized measurement on the disc spring by using the press, the strain rosette and the steel gasket to obtain a static pressure change value of the press and a strain change value of the strain rosette;
[0074] Step S102, obtaining the vertical load-strain relationship curve based on the static pressure change value and the strain change value.
[0075] It should be noted that, in this embodiment, the first relationship curve may include: a vertical load-strain curve.
[0076] Specifically, for example, Figure 3 The loading diagram of the disc spring calibration test is shown, the press 30 includes an upper plate 301 and a lower plate 302 of the press, the first strain pattern 2 and the second strain pattern 3 are arranged on both sides of the disc spring 4, and the first displacement meter 6 and the second displacement meter 7 are respectively located on both sides of the lower plate 302 of the press, and are respectively connected to the upper plate 301 and the lower plate 302 of the press. In this embodiment, a vertical load P perpendicular to the upper plate 301, the steel gasket 1, the disc spring 4 and the lower plate 302 of the press is applied slowly and evenly, and the relative displacement of the upper plate and the lower plate of the press 30 is measured by the first displacement meter 6 and the second displacement meter 7, and then the deformation of the disc spring 4 can be obtained by the relative displacement, so that the operator can know the deformation degree of the disc spring 4 at any time according to the displacement meter. By reading the static pressure change value of the press 30 and the strain change value of the disc spring 4 measured by the strain rosette, the relationship curve of the vertical load (P)-strain (ξ) under the impact load is obtained, and the calibration of the disc spring 4 is completed. The calibrated disc spring 4 is used to perform subsequent high-strain impact tests on the pile 5.
[0077] Furthermore, in the above step S20, “performing a high strain impact test on the pile to be tested based on the strain rosette, the steel gasket and the disc spring after the standardized measurement to obtain a second relationship curve” may include:
[0078] Step S201 , performing a high strain impact test on the foundation pile based on the plurality of strain rosettes, the steel washers and the disc springs after standardized measurement to obtain a strain-time relationship curve of the disc spring.
[0079] It should be noted that, in this embodiment, the second relationship curve may include: a strain-time history relationship curve.
[0080] Specifically, for example, Figure 4 As shown in the loading schematic diagram of the disc spring impact pre-test, the device for high strain impact test includes a steel gasket 1, a disc spring 4, a first strain pattern 2, a second strain pattern 3 and a rigid base, i.e., a foundation pile 5, wherein the steel gasket 1 is located at the top of the disc spring 4, and the first strain pattern 2 and the second strain pattern 3 are respectively arranged on both sides of the disc spring 4. An impact load F is applied in a direction perpendicular to the steel gasket 1, the disc spring 4 and the foundation pile 5, and the strain-time relationship curves of the first strain pattern 2 and the second strain pattern 3 in the high strain impact test are read, so that the time (t)-strain (ξ) relationship curve under the impact load can also be obtained.
[0081] Furthermore, in the above step S30, “determining a target relationship curve according to the first relationship curve and the second relationship curve, and determining the impact force on the pile in the high strain impact test based on the target relationship curve” may include:
[0082] Step S301: performing reverse normalization measurement on the second relationship curve according to the first relationship curve to obtain a stress-time history relationship curve.
[0083] Step S302: obtaining an impact force on the disc spring according to the stress-time relationship curve, and determining an impact force on the foundation pile in the high strain impact test based on the impact force.
[0084] It should be noted that, in this embodiment, the first relationship curve is a vertical load (P)-strain (ξ) relationship curve, the second relationship curve is a strain-time history curve, and the target relationship curve is a stress-time history curve.
[0085] Specifically, for example, since within the elastic deformation range of the disc spring 4, the strain of the disc spring 4 and the vertical compressive stress are in a one-to-one correspondence, the vertical load (P)-strain (ξ) relationship curve obtained under the calibration of the press 30 is used to perform reverse normalization on the strain-time relationship curve of the disc spring 4 obtained under the impact load F to obtain the stress-time relationship curve, thereby obtaining the impact force exerted on the disc spring 4 under the impact load F, and finally measuring the impact force borne by the pile 5 during the high strain detection process.
[0086] In this embodiment, the vertical load P is applied slowly and evenly, and the vertical load (P)-strain (ξ) relationship curve under the impact load is obtained by reading the static pressure change value of the press 30 and the strain change value of the disc spring 4 measured by the strain rosette. The impact load F is applied in a direction perpendicular to the steel gasket 1, the disc spring 4 and the foundation pile 5, and the strain-time relationship curve of the strain rosette in the high strain impact test is read, so that the time (t)-strain (ξ) relationship curve under the impact load can also be obtained. The strain-time relationship curve of the disc spring 4 obtained under the impact load F is reversely calibrated using the vertical load (P)-strain (ξ) relationship curve obtained by the press 30 calibration to obtain the stress-time relationship curve, thereby obtaining the impact force of the disc spring 4 under the impact load F, and finally measuring the impact force borne by the foundation pile 5 during the high strain detection process.
[0087] The present invention first performs standardized measurement on the disc spring 4 through a press 30, and applies the standardized disc spring 4 to a high strain impact test on the pile 5, and finally obtains the impact force on the pile 5 in the high strain impact test. The present invention can measure the real and accurate impact force borne by the pile 5 in the high strain impact test, thereby improving the detection efficiency of the bearing capacity of the pile 5 and also improving the quality of the pile foundation project.
[0088] In addition, an embodiment of the present invention further provides a striking force testing device. The specific implementation of each functional module of the striking force testing device of the present invention is basically the same as the above-mentioned striking force testing method embodiments, and will not be described in detail herein.
[0089] In addition, an embodiment of the present invention further proposes a computer-readable storage medium, on which a striking force testing program is stored. When the striking force testing program is executed by a processor, the steps of the striking force testing method described above are implemented.
[0090] The various embodiments of the striking force testing system and the computer-readable storage medium of the present invention may all refer to the various embodiments of the striking force testing method of the present invention, which will not be described in detail here.
[0091] In addition, an embodiment of the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps of the striking force testing method as described in any embodiment of the striking force testing method are implemented.
[0092] The specific embodiments of the computer program product of the present invention are substantially the same as the embodiments of the above-mentioned striking force testing method, and are not described in detail herein.
[0093] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.
[0094] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.
[0095] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present invention.
[0096] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A method for testing striking force, characterized in that: The impact force testing method is applied to an impact force testing system, and the impact force testing system comprises: a disc spring, a strain gauge flower, a press and a steel gasket; The testing method of the striking force comprises the following steps: Performing standardized measurement on the disc spring by using the press, the strain gauge flower and the steel gasket to obtain a first relationship curve; A second relationship curve is obtained by performing a high strain impact test on the pile to be tested based on the strain rosette, the steel gasket and the disc spring after the standardized measurement; The second relationship curve includes: a strain-time relationship curve, and the step of performing a high strain impact test on the pile to be tested based on the strain rosette, the steel gasket and the disc spring after the standardized measurement to obtain the second relationship curve includes: Based on the plurality of strain rosettes, the steel washers and the disc springs after the standardized measurement, a high strain impact test is performed on the foundation pile to obtain a strain-time relationship curve of the disc spring; A target relationship curve is determined according to the first relationship curve and the second relationship curve, and an impact force on the foundation pile in the high strain impact test is determined based on the target relationship curve.
2. The method for testing striking force according to claim 1, characterized in that: The first relationship curve includes: a vertical load-strain relationship curve, and the step of obtaining the first relationship curve by performing standardized measurement on the disc spring using the press, the strain rosette and the steel gasket includes: The disc spring is subjected to standardized measurement by the press, the strain rosette and the steel gasket to obtain a static pressure change value of the press and a strain change value of the strain rosette; The vertical load-strain relationship curve is obtained based on the static pressure change value and the strain change value.
3. The method for testing striking force according to claim 1, characterized in that: The target relationship curve includes a stress-time relationship curve, and the step of determining the target relationship curve according to the first relationship curve and the second relationship curve includes: The stress-time history relationship curve is obtained by performing reverse normalization on the second relationship curve according to the first relationship curve.
4. The method for testing striking force as claimed in claim 3, characterized in that: The step of determining the impact force on the foundation pile in the high strain impact test based on the target relationship curve comprises: The impact force on the disc spring is obtained according to the stress-time relationship curve, and the impact force on the foundation pile in the high strain impact test is determined based on the impact force.
5. The method for testing striking force according to claim 1, characterized in that: The disc spring is located between an upper top plate of the press and a lower bottom plate of the press.
6. The method for testing striking force according to claim 1, characterized in that: The disc spring is located on top of the foundation pile.
7. A striking force testing device, characterized in that: The testing device for the striking force comprises: A disc spring, wherein the disc spring is used to test the impact force of a foundation pile to be tested, wherein the foundation pile is located below the disc spring; A strain rosette, the strain rosette is located on both sides of the disc spring, and the strain rosette is used to measure the strain of the disc spring; A steel gasket, the steel gasket is located above the disc spring, and the steel gasket is used to bear the impact load in the impact force test; A press, wherein an upper plate of the press is located above the steel gasket and a lower plate of the press is located below the disc spring, the press being used to perform standardized measurements on the disc spring; The press, the strain gauge flower and the steel gasket are also used to perform standardized measurement on the disc spring to obtain a first relationship curve; The strain rosette, the steel gasket and the disc spring after standardized measurement are used to perform a high strain impact test on the pile to be tested to obtain a second relationship curve, wherein the second relationship curve includes a strain-time relationship curve, a target relationship curve is determined based on the first relationship curve and the second relationship curve, and the impact force on the pile in the high strain impact test is determined based on the target relationship curve.
8. A terminal device, characterized in that: The terminal device includes a memory, a processor, and a striking force testing program stored in the memory and executable on the processor. When the striking force testing program is executed by the processor, the steps of the striking force testing method as described in any one of claims 1 to 6 are implemented.
9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a striking force testing program, and when the striking force testing program is executed by a processor, the steps of the striking force testing method according to any one of claims 1 to 6 are implemented.
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